The principles underlying radio communication (1922)
United States. National Bureau of Standards, Ould, Richard Sheldon, 1889-, United States. Army. Signal Corps · Washington, Govt. Print. Off. · leaf 473
Co. and has a plate outside of theglass tube in which the filament and grid are contained, theelectron flow to the plate occurring through the glass. TubeNo. 15 is a very small tube made by the Western Electric Co.and is designated as Type VT-5, or Type N. Tubes Nos. 16, 17, 18, 19 are French…
Telegraph, Wireless · Radio
Internet Archive · Public Domain Mark 1.0. Free to use for anything.
